Is canker sore mouthwash profitable to sell on Amazon United States?

The niche generates $574K/yr across 10 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -5.5%. Flapen's verdict: Skip it (49/100).

How competitive is the canker sore mouthwash niche?

8 brands and 59 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 89% of demand.

What do buyers complain about in canker sore mouthwash?

Top complaints mined from reviews: Value For Money, Pain Relief-Overall, Leak-Proof. The return rate is 0.4%.

When does demand for canker sore mouthwash peak?

Demand peaks in Feb–Mar–Oct; the busiest month runs 2.3× the quietest.

What does it cost to enter the canker sore mouthwash niche?

Listings span $6.43–$39.72; the average listing price is $14.66 (sweet spot $15–$100). The average incumbent carries 10,346 reviews — the moat a new listing must climb.

canker sore mouthwash

Skip it

A concentrated shelf (top 5 take 80% of clicks) — this niche doesn't clear our bar today.

Conversion

Incredible17.1%

search→purchase rate — share of searches ending in a sale

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Price range

Good$6.43–$39.72

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Good$14.66

avg listing price — sweet spot $15–$100

Market size

Good$574K

$574K/yr · 229K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Brand share

Okay89%

top-5 brand share — brands hold most of the demand

Growth

Bad-5.5%

90-day search growth — must beat 0% to launch

Review moat

Bad10,346.4

avg incumbent reviews — the moat a new listing must climb

Competition

Bad80%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, canker sore mouthwash is a $574K/yr Amazon United States market (229K searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Feb–Mar–Oct. Verdict: Skip it — 49/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

canker sore mouthwash market data

Units sold / yr: 40K–50K; avg 4,000–5,000/product
Revenue / yr: $586K–$733K; units × avg price
Conversion rate: 17.1%
Avg BSR: #68
Page quality: 0%
Prime: 100%
Sponsored: 70%
Out of stock: 0.0%
Avg brand age: 90 months
Avg seller age: 148 days

Competition & brand share

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 flat

Sellers

Top-5 brand share

89%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

Oral-B47%
Colgate17%
Orajel12%
Canker-X7%
GuruNanda6%
PHS Brands5%
Open — no brand owns it (2 brands, 6%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -5.5% search growth over the last 90 days.

Peak months: Feb, Mar, Oct · busiest ÷ quietest = 2.3×

Open Trend

Top canker sore mouthwash search terms

mouth sore mouthwash39K/yr -6.0%14.3% conv.
oral b mouth sore rinse34K/yr +5.9%21.5% conv.
canker sore mouthwash35K/yr +3.1%16.1% conv.
mouth sore rinse26K/yr -8.4%10.1% conv.
oral b mouthwash20K/yr -11.0%5.7% conv.
mouth rinse for mouth sores11K/yr -22.7%10.5% conv.
sore mouth rinse10K/yr -18.9%13.7% conv.
mouthwash for mouth sores11K/yr -18.6%11.0% conv.
mouthwash for canker sores5K/yr -2.7%12.3% conv.
oral rinse for mouth sores5K/yr -4.1%11.9% conv.

All search terms

Top canker sore mouthwash products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Oral-B Mouth Sore Mouthwash Special Care Oral Rinse Hydrogen Peroxide Mouthwash 16 fl oz Mouthwash Alcohol Free

Oral-B$11.174.7★8,193 rev

Orajel Nonseptic Mouth Sore Rinse 16oz Soothing Mint Flavor Provides Pain Relief Promotes Healing 3-Pack

Orajel$21.354.8★2,037 rev

Colgate Peroxyl Alcohol Free Mouthwash with 1.5% Hydrogen Peroxide Mouth Sore Rinse for Canker Sores Oral Irritations and Burns Mild Mint 16.9 fl oz Bottle

Colgate$9.654.7★42,237 rev

Colgate Peroxyl Alcohol Free Mouthwash with 1.5% Hydrogen Peroxide Mouth Sore Rinse for Canker Sores Oral Irritations and Burns Mild Mint 8.4 fl oz Bottle

Colgate$7.004.7★42,237 rev

Canker-X Rincinol Oral Rinse Mouthwash Quick Pain Relief from Canker Sores Mouth Burns & More Benzocaine Free & Alcohol Free Mouthwash Adults & Kids 6+ Years 4.0 Fl. Oz.

Canker-X$13.144.4★2,035 rev

Newest

by launch date

GuruNanda Mouth Sore & Canker Sore Rinse Fast-Acting Relief for Oral Irritation Cuts & Gum Discomfort 1.5% Hydrogen Peroxide Oral Rinse Alcohol-Free Winter Mint 16 oz

GuruNanda$7.98252 rev

6mo ago

CloSYS Hydrogen Peroxide Mouthwash 16 oz Canker Sore Mouthwash Alcohol-Free Non-Burning Cleanses and Heals Mouth Sore Rinse

CloSYS$15.36692 rev

1y ago

ioRinse MR Oral Rinse Mouthwash for Dry Mouth & Mouth Sores Relief Alcohol Free Therapeutic Mouthwash for Oral Mucositis Canker Sores & Irritation Dentist Recommended Oral Rinse Mint Flavor 1 L

Iotech International$39.72522 rev

1y ago

Canker-X Rincinol Oral Rinse Mouthwash Quick Pain Relief from Canker Sores Mouth Burns & More Benzocaine Free & Alcohol Free Mouthwash Adults & Kids 6+ Years 4.0 Fl. Oz.

Canker-X$13.142,035 rev

3y ago

Oral-B Mouth Sore Mouthwash Special Care Oral Rinse Hydrogen Peroxide Mouthwash 16 fl oz Mouthwash Alcohol Free

Oral-B$11.178,193 rev

6y ago

What buyers say about canker sore mouthwash

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall16%

“Also, exactly as advertised and quality made”

Tooth Sensitivity13%

“It really helped to calm my severe toothache”

Oral Hygiene12%

“Great for your gums”

Efficiency11%

“Effective”

Value For Money7%

“GOOD price”

Advertised Vs Actual Product5%

“As advertised”

Cleansing4%

“It helps clean the area”

Taste-Overall3%

“On a positive note it tastes nice so theres that”

Ease Of Use3%

“Works quickly most the time”

Ease Of Cleaning2%

“The rinse is easy to use”

What buyers complain about

Value For Money11%

“A bit overpriced”

Pain Relief-Overall7%

“It also does not give any pain relief”

Leak-Proof7%

“can leak if unlucky”

Ease Of Use7%

“Ineffective and very unpleasant to experience”

Oral Hygiene6%

“Nothing has helped not even a dentist”

Allergies6%

“can get allergic reactions easily”

Quality-Overall4%

“Not very good at all”

Sensitivity-Overall3%

“Not happy with the burning sensation”

Strength3%

“it could be stronger”

Ingredients-Overall3%

“both have completely different ingredients with changes”

Top return reasons

Functionality-Overall19%

Leak-Proof19%

Advertised Vs Actual Product19%

Size-Overall8%

Value For Money5%

Product Condition4%